The diagram represents Earth's orbit around the Sun. Where is the Sun located in this ellipse? A)
At the center
B)
At the periphery
At the epicenter
D)
At one of the two foci
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Suppose that f : rn → rm and that a ∈ k, where k is a connected subset of rn . suppose further that for each x ∈ k there exists a δx > 0 such that f(x) = f(y) for all y ∈ bδx (x). prove that f is constant on k; that is, f(x) = f(a) for all x ∈ k

The friction of the water on a boat produces an acceleration of -10. m/s2. if the boat is traveling at 30. m/s and the motor is shut off, how long it take the boat to slow down to 5.0 m/s?

Can someone answer my last question i posted? on my last post? my hw is due tomorrow and i’m confused.